Col. Lynnette Arnhart has stepped down from her duties involving a gender study after a controversy surrounding an internal email she wrote that went public. In the email, Arnhart suggested that the Army avoid using photos of attractive women in marketing materials. Gen. Robert Cone, commander of the Army's Training and Doctrine Command at Fort Eustis, Va., has reportedly accepted the move, "in order to protect the integrity of the ongoing work on gender integration in the Army."